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3 years ago

5

Find missing size if side of right angled triangle

1 answer:

Vsevolod [243]3 years ago

8 0

Answer:

ABC is a right angled triangle with BC = 6 cm and AB = 8 cm. AC ... A line drawn from center of the circle will be perpendicular to the sides of the triangle ... be same which ever be the base. 1/2 * 8 *6= 1/2 * 10 * h (h= the altitube drawn to the hypotenuse) h= 4.8. ... As sides BC=6 am and AB = 8 cm, we can derive AC=10 cm

Step-by-step explanation:

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Which sequence of transformations produces an image that is not congruent to the original figure?

stiks02 [169]

D

Translations, Reflections, and Rotations are transformations that result in a congruent figure.

Dilations on the other hand don't. They change the size of the figure, which means the transformed figure is not congruent to the original.

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4.<br> What is the domain of the graph shown below?

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Solve for x in the equation.

labwork [276]

Answer:

The solution is $\displaystyle x=1\pm \sqrt{47}$ . Fourth option

Explanation:

Solve for x:

$2x^2+3x-7=x^2+5x+39$

Move all the terms from the right to the left side of the equation, a zero in the right side:

$2x^2+3x-7-x^2-5x-39=0$

Join all like terms:

$x^2-2x-46=0$

The general form of the quadratic equation is:

$ax^2+bx+c=0$

Solve the quadratic equation by using the formula:

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

In our equation: a=1, b=-2, c=-46

Substituting into the formula:

$\displaystyle x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-46)}}{2(1)}$

$\displaystyle x=\frac{2\pm \sqrt{4+184}}{2}$

$\displaystyle x=\frac{2\pm \sqrt{188}}{2}$

Since 188=4*47

$\displaystyle x=\frac{2\pm \sqrt{4*47}}{2}$

Take the square root of 4:

$\displaystyle x=\frac{2\pm 2\sqrt{47}}{2}$

Divide by 2:

$\displaystyle x=1\pm \sqrt{47}$

First option: Incorrect. The answer does not match

Second option: Incorrect. The answer does not match

Third option: Incorrect. The answer does not match

Fourth option: Correct. The answer matches exactly this option

8 0

3 years ago

user100 [1]

Answer:

This might be wrong but I think it is C

Step-by-step explanation:

8 0

4 years ago

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Can some one help me find x?

Gnom [1K]

Answer:

x = 20

Step-by-step explanation:

Exterior angles are equal.

7x - 3 = 6x + 17

Add 3 and subtract 6x to both sides.

x = 20 is the answer.

4 0

3 years ago

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